sheets-sheet



J. RAU.

LEER.

APPLICATION FILED 1 55.12, 1916. I 1 1 9 5,087 Patented Aug. 15, 1916.

, 5 SHEETS-SHEET l- INVENTOI? WITNESSES J. RAU.

LEER.

APPLICATION FILED FEB. 12, ms.

A TTOR/VEYS J. RAU.

LEER.

APPLICATION FILED FEB. 12. $916.

1,195,087. PatentedAug. 15,1916.

5 SHEETS-SHEET 3.

J. RAU.

LEER.

APPLICATION FILED FEB. 12, $916.

Patented Aug. 15, 1916.

5 SHEETS-SHEET 4.

HW ENTOR J I-(N PRU A TTORNEYS J. RAU.

LEER.

APPLICATION FILED FEB. 12. 1-916.

Patented Aug. 15, 1916.

5 SHEETS-SHEET 5.

R N 1 N INVENTOR J g y PFL/ A TTOR/VEK? JOHN RAU, OF INDIANAPOLIS, INDIANA.

LEE'R.

Continuation of application Serial No.

To all whom it may concern Be it known that 1, JOHN RAU, a citizen of the United States, and a resident of Indianapolis, county of Marion and State of Indiana, have invented acertaln new and useful Leer; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing, in which llke letters refer to like parts.

This application is a continuation of an application Serial No. 871,900, filed November 13,1914.

The object of this inventionis to 1mprove the control and distribution of the heating elements in a leer and particularly by causing a down draft of the heatlng elements so that the same will pass downward between and around the glass article. This has been designed and used 1n connection withthe manufacture of very large hollow glassware such as bottles having a capacity of five, ten or fifteen gallons. In the tempering of glass bottles, it 1s difficult to get a proper distribution of the heated elements and bring the same into contact with all parts of the bottles so asto give to the different parts of each bottle a substantially uniform temperature.

The chief feature of the invention consists in providing a leer with an upper main or heating chamber and means for introducing the heat into the front part thereof and having a lower or flue chamber into which the heating elements in the upper chamber are drawn so as to cause a down draft through the glassware, and to enable this to be done the conveyer of the glassware is perforated. Communication between the upper or heating chamber and the flue chamber is provided at intervals and is controlled by dampers at the various points so that the temperature and also the degree of down draft can be regulated. I

Another feature of the invention consists in providing a vertically adjustable partition plate in the upper and main orheating chamber of the leer arranged so that the leer can be divided into a forward or heating chamber. and a rearward or cooling chamber.

The full nature of the invention will be understood from the accompanying drawings and the following description and claims.

Specification of Letters Patent.

, Patented Aug. '15, 1916..

871,900, filed November 13, 1914. This application filed February 12, 1916. Serial No. 78,009.

In the drawings, Figure 1 is a side eleva t1on of the leer. Fig. 2 is a front elevation of the same. Fig. 3 is a section on the line 3-3 of Fig. 1. Fig. 4 is a section on the line 44 of Fig. 3. Fig. 5 is a plan view of one of the conveyer plates. Fig. 6 is a longi. tudlnal vertical section through two connected vertical plates. Fig. 7. is a plan View of a portion of the roller track on which the conveyer plates move. Fig. 8 is a section on the line 88 of Fig. 7. Fig. 9 is a side elevation of what appears in Fig. 7. Fig. 10 is a section on the line 1010 of Fig. 1. Fig. 11 is a central vertical longitudinal section of the discharge end. Fig. 12 is a section through a portion of the leer on the line 12-12 of Fig. 10. Fig. 13 is a plan view of a damper construction. Fig. 14: is asection on the line 1414 of Fig. 13. Fig. 15'isacentral longitudinal vertical section of amodified form of leer, the same being centrally broken away. Fig. 16 is a front elevation thereof with the conveyer mechanism omitted Fig. 17 is a plan view of a portion of the conveyer. Fig. 18 is a perspective view of one of the conveyer links.

The leer is constructed with side walls 10 braced by braces 11 and cross bars 12 at the top; as seen in Fig. 3. At the front end, as shown in'Figs. 2 and 4, there is a front wall 13 with an opening 14 therein for the introduction of glassware 15 upon a conveyer 16.

The conveyer is made up of a series of conveyer plates 16, one of which is shown in Fig. 5, and the conveyer plates are connected with each other in succession, as shown in Fig. .6. The plates are provided with a large number of perforations 17 and their lateral edges 18 are turned up to form side flanges. On the under side of the conveyer plates there are longitudinally extending connecting bars 19 secured to the plates. One end of each bar projects beyond the plate, -as shown in Figs. 5 and 6,

and has an upwardly projecting pin 20 adapted to enter a hole 21 in the adjacent end of the next plate and in a portion of said plate which overlaps the end of the connecting bar 19. Therefore, these plates can be readily coupled to form the conveyer and can be readily uncoupled for any purpose. In the form shown in the first fourteen figures, the conveyer does not return, but after the glass articles are'removed from the discharge end of the conveyer, the conveyer plates are removed successively and carried to the front end of the conveyer at the front end of the leer.

The conveyer is moved through the leer by the means shown in Figs. 4, 10 and 11. As shown in Fig. 11, there is a shaft 25 carrying midway its length a sprocket wheel 26 over which asprocket chain 27 operates. Said chain is connected with a V-shape yoke member-28, the two inner ends of which are turned downwardly, as shown in Fig. 11, and which are inserted in holes 21 in the conveyer plates heretofore described and thus the conveyer is moved rearwardly as said shaft 25 is actuated. It is' driven by a gear 29 secured thereon which meshes with a pinion 30 on a shaft 31 and on that-shaft there is a gear-32 which meshes with a pinion 33, shown by dotted lines in Fig. 11, on a sleeve loosely mounted on the end of shaft 25 and turned by a hand crank 34. As said crank is actuated, it will operate said sleeve, pinion, gear 32, shaft 31., pinion 30, gear 29, shaft 25, sprocket 26 and sprocket chain 27. This will cause a very slow feeding movement of the conveyer plates through the leer.

As illustrated in Fig. 3, the conveyer plates 16 are moved between lateral guides 35 upon upward projections 135 from transverse bars 36 secured in the side walls of the leer. Y The plates travel on anti-friction rollers 37 mounted as shown in Fig. 7, in channeled frames 38 which extend longitudinally of the leer upon the cross bars 36 and are held in place between a pair of upwardly extending lugs 39 on said cross bars.

The leer has a longitudinally extending up-- per chamber 40 through which the conveyer and glassware pass and which may be termed a heating chamber. The upper wall of said heating chamber is transversely concave or arched in the front part of the leer,

as shown in Fig. 3, but in the rear portion of the leer, that is, to the rear of'the braces shown in Fig. 1, the upperwall of said heating chamber is formed of successive longitudinal arches, as shown in Figs. 11 and 12. And means for supplying heat to said heating chamber are provided, an upper one and a lower one. per heater or burner 42 which introduces gaseous fuel and heat through an opening 43 in the front wall of the leer, as seen in Fig. 4, and the heated gases are deflected upward against the top of the heating chamber by a baflle plate 44. There is a lower heater or burner 45 extending through an opening 46 in the lower part of the front wall of the leer into what may be called 'a furnace chamber 47 which is entirely inclosed excepting lateral outlet openings 48 into the lower portion of the heating chamber 40 .and below the conveyers. Said There is an up-.

chamber 47 is relatively small and has a solid rear wall 49, as seen in Fig. 4.

The longitudinal heating chamber 40 is not a flue chamber, the flue chamber 41 extending longitudinally of the leer'and being below the heating chamber 40 and separated therefrom by a partition 141 which is transversely arched, as seefi in Fig. 10. This flue chamber leads to a flue 50 located toward the rear end of the leer, as seen in Figs. 1 and 12. The gases pass from the heating chamber 40 downward through vents or openings 51, as shown in Figs. 10 and 12, and located at intervals in the partition 141 into the flue chamber 41 below and thence to the flue 50 which extends up from the side of the leer. There are no vents 51 near the front end of the leer. They begin to the rear of the portion of the leer shown in Fig. 4.

v The purpose of the foregoing arrange ment of heating chamber and flue chamber, with an intermediate partition having vents 51 therethrough, and the perforated conveyer being located in the heating chamber, is to cause a down draft of the heat and gases from the upper part of the heating chamber 40 around the glassware and down through the perforated conveyer plates to the flue chamber 41. This is the most valuable feature of the invention. In the front portion of the heating chamber, the heated gases from the two furnaces or heaters envelop the glassware, passing freely around each glass article and through the conveyer plates 16, but as soon as the conveyer carrying the glass articles leaves the front portion of the heating chamber, then the heated gases in the heating chamber, the most of which is above the conveyer, passes downward between the glass articles and'through the conveyer plates and vents 51 to the flue chamber, as explained. This down draft greatly facilitates the uniform distribution of the heat and the uniform efi'ect thereof on the glassware, particularly the sides and bottoms thereof.

The openings or vents 51 are closed or controlled by dampers 52 sliding in horizonta guides. 53v secured in the upper part of the partition 141 at the upper end of the vents 51, asseenin Fig. 10, and which are operated by rods 54 which extend transversely through openings 154 in one side wall of the leer, as seen in Figs. 1 and 10. By these the down draft above described may be regulated, as desired, at any point.

The construction just described to provide for the ,down draft does not extend entirely to the rear end of the leer, but only to an adjustable vertically disposed partition plate 60, shown in Fig. 12, to the rear of the flue 50. This plate projects down through the top of the leer lnto the heating chamber 40 to a point immediately above the glassware on the conveyer and as far as possible separates the leer into a forward heating chamber and a rearward cooling chamber. That is, the portion of the chamber 40 to the rear of plate 60 is shut ofl from the heat so that it becomes a cooling chamber and gradually cools the glassware as it travels through said chamber. The plate 60 is vertically slidable in a slotted guideway6l which has a metal cap '62 thereon through which a screw 64 operates for the vertical adjustment of the partition. The flue chamber 41 does not extend to the rear of the partition plate 60, but the-corresponding space is filled with earth 65, shown in Figs. 11 and 12. p

The operation of the leer will be understood from the foregoing description thereof. As appears thereby, the glassware is heated by down draft of heated gases and the same is readily controlled by the dampers.

In the modified form shown in Figs. 15 to 18, there is an endless conveyer formed of narrow perforated transverse plates or bars 71 connected with links 72 carrying rollers 73 which operate on tracks 74:, as shown in Fig. 16, and secured to the side Wall of the leer. In this construction there are longitudinal heating chambers 75 with communications 76 at intervals between said chambers and the chamber 40 of the leer and these communications are controlled by dampers 77, as seen in Figs. 15 and 16, and said dampers are operated by rods 78 extending to a point outside of the leer.

The invention claimed is:

1. A leer including a longitudinally extending heating chamber with openings located at intervals in the bottom thereof, a perforated conveyer for the glassware movable longitudinally along said heating chamber, means for supplying heat to the front end of said chamber, and a flue near the rearend of the leer arranged to draw the heated gases longitudinally of said heating chamber and downward between and through the conveyer and out through the Igpenings in the bottom of the heating cham- 2. A leer including a longitudinally extending heating chamber, a perforated conveyer for the glassware movable longitudinally along the lower portion of the heating chamber, means .for supplying heat to the heating chamber, a flue chamber extending longitudinally beneath said heating chamber and separated therefromby a partition, a flue at the rear end of the flue chamber, and openings located at intervals in said partition in the bottom of the" heating chamber through which the heated gases pass downward between the glassware and through the conveyer and out through said flue chamber.

3. A leer including a longitudinally exi tending heating chamber,'means for supplying heat to the front end of said heating chamber, a perforated conveyer for the glassware movable longitudinally along the lower portion of the heating chamber, a flue chamber extending longitudinally beneath said heating chamber and separated therefrom by a partition, and openings located at intervals in said partition in the bottom of cation at intervals with the rear portion of said heating chamber.

5. A- leer including a heating chamber, means for conveying the glassware longitudinally along the lower portion of said chamber, means for heating the front end of said chamber, a chimney located near the other end of the leer, and a flue chamber below the rear portion of said heating chamber and in communication therewith at intervals and leading to said chimney.

6. A leer including a heating chamber extending lengthwise of the leer, a furnace chamber below the forward end of the heating chamber with lateral openings leading therefrom to the heating chamber, a flue chamber behind the furnace chamber and extending below the heating chamber for substantially the length thereof, communication at intervals between said heating and flue chambers, and means for conveying the glassware along the lower portion of the heating chamber which permits vertical movement of the heated elements through the glassware carried by such conveyer.

7.. A leer including a heating chamber, means located at the forward end of the heating chamber for introducing heat into the upper part thereof, a baflie plate for deflecting theflame against'the top wall ofsaid heating chamber, means located in'the lower part of the heating chamber for conveying the glassware, and means for drawing the heated elements fromthe upper part of the heating chamber downward below said. conveyer.

8. A leer including a heating chamber;

means for supplying heat to the upper part thereof, a perforated conveyer adapted to move longitudinally through said conveyer,

alongitudinal flue chamber below said conveyer and in communication at intervals with said flue chamber, and meansat the lower forward end of said leer for supplying heat to the lower forward end of said thereof a perforated conveyer adapted to move longitudinally through said conveyer, a longitudinal flue chamber below said conveyer and in communication at intervals with said flue chamber, and a furnace chamber at the lower forward end of said leer having a number ofupper discharge openings into the heating chamber.

In witness whereof, I have hereunto affixed my signature.

JOHN RAU. 

